Drying apparatus



M s, 1924 v 1,586,592

F. R-REED v DRYINGAPPAR ATUS Filed July 1, 1923 2 Sheets-Sheet 1 Jul 8 1924. 1,500,592 F. P. REED I DRYING APPARATUS Filed July 1, 1922 2 Sheets-Sheet 2 awwentoz Patent July 8, 192 2.

FREDERIC P. REED, OF EAST ORANGE, r:

assieu'oa, BY manor AND MESNE ASSIGNMENTS, TO WATERFORD T HQ, OF WATERFORD,

YORK, A CORPORATION OF NEW YORK.

DRYING- APPdEAT'US.

Application filed m 1, 1922. Serial No. 572,118.

To all whom it may concern.

Be it known that I, Fnnnn'mo P. REED, a citizen of the United States, residing at East Orange, New Jersey, .have invented certain new and useful Improvements in Drying Apparatus, of which the following is a clear, full, and exact description.

This invention relates to an apparatus for drying paper pulp or similar material which is spread out into a sheet or web and has for its object the arrangement and construction of the parts in such a manner that the material is quickly and thoroughly dried during its passage through a heat chamber.

An important feature ,of my invention re-.

lates to the provision ofmeans whereby the web-of material is guided and supported in its passage through the heat chamber, the guiding and supporting means being in the form of reels of skeleton construction which not only serve thefunction of guiding but also act to agitate theair so that it is more readily brought into contact with the material to be dried.

Other features and advantages will appear from the following detailed description and claims when taken in connection with the accompanying drawings'in Which' Fig. 1 is a side elevation with part of thecasing broken away to show the interior construction I Fig. 2 is a section on the line2-2 of Fig. 1;

Fig. 3 is a section on the line 3-3 of Fig. 1; and

Figs. 4 and 5are detailed viewsof areel.

Referring to the drawings, there is provided a heat chamber 1 properly supported by suitable framework, said chamber being provided with an aperture 2 through which the web of material to be dried is fed into the heat chamber, and an opening 3 out of which the dried material passesv to be out into sheets or wound up upon a core, as desired. The web of material 4 to be dried may be paper pulp or similar material which is guided by rolls 5 and 6 towards the opening 2. The roll 5 is supported on a frame 6 which also forms a part of the support for the heat chamber. The roll 6 is carried by an arm 7 pivoted to an upright 8 also forming a portion of the framework.

As the moist product passes through th aperture or opemng 2 into the heatchamber,

. portion 11. A suit it is immediately taken up by upper and lower rotating reels and conveyed through the chamber to the exit 3. These reels are carried by a frame having upright end portions 9, an upper provided, and likewise an outlet stack 13. For forcing the air into the chamber a Sturtevant last may be used. L

The chamber is heated to approximately from 300 to 350 .F., and any suitable means may be provided for this purpose, although preferably I use regular stock nickel chrome electrical heaters, and one of these heaters 14 is shown fastened to the upper portion of the frame 10 and another heater 15 to the lower portion 11, these heaters being bolted to theframe or fastened in any othersuitable manner. Preferably a series of these heaters is provided and they are so arranged as to -give equal volume of 'heatto "bothithe upper and lower parts of the chamber.

In order that ready access may be had to the chamber, I provide hinged doors- 16. These doors fit closely to prevent any unnecessary escape of heat during the drying period.

The reels which ossess' the dual function of both guiding n supporting the product to be dried and a 'tating the air within the chamber are constructed as follows. Each reel consists of a br ass head 17 having a flange 18 on its outer side by means of which it is secured to a shaft 1 through the'medium of a set crew 20. The supporting surface of each reel is constrhct'edbf rods 21 of suitable diameter which fit into perforations in the heads, the ends of the rods being slightly tapped at each end to prevent their sipping out of place.\ Intermediate the heads is aspider 22 for preventing any sagging of the rods due to thelweight of'the material carried and guided thereby. Each shaft 19 is shouldered at eithdr end and revolves in a brass or bronze bearing 23 sup ported by the frame member 11'.

For propelling the reels I- prefer to use sprocket wheels fastened to the shafts and preferably the sprocket chains connecting the reels are placed alternately in pairs, that is to say, the first and secon wheel is connected by a sprocket chain on one side while the second and third wheels are connected pprtion 10 and a lower a le inlet stack 12 for the admission of fresh air in to the chamber is l 1 upon upper :reel 29. There are two of these i by a sprocket chain on the other side. The

initial repelling force is taken from the I roll 5, t e shaft of which carries at its end a sprocket 24, Fig. 3, which is connected by a sprocket chain to .wheel carriedby the shaft 19 of the first reel within'the chamber, which shaft is extended to the outside of the chamber for this purpose. This same shaft also carries a gear wheel 26 which meshes with a gear wheel 27 on the shaft 28,

upper reels connected together by a sprocket chain for suitably gulding the product through the chamber.

roduct tightly and prevent any slipping during its transit through the chamber.

The moist air is carried out of the chamher through the shaft 13 as suggested, which shaft may also be provided with an electric the light exhaust of known construction,

. vapor passing readily into this shaft. In

' be understood that variations may be resorted to without thereof.

vWhat I claim as new is- 1. In a drying apparatus for drying paper web or similar material, the combination departing from the spirit These reels hold thewith a heat chamber'and means for forcing air into said chamber, of means for feeding the web to be dried into said chamber, means located at both the upperand lower portions of said chamber for sup lying heat, said chamber being substantial y enclosed except for the ingress and egress openings for the web whereby a high temperature is maintained, and means for guiding the web within and through the chamber, said guiding means so constructed and arranged as to likewise agitate the air and cause circulation thereof through the pores of the web to be dried.

2. In a drying ap aratus, the combination with a heat chain r, aframe supported therein, heat supplying means carried by said frame and reels also carried by said frame for supportin and guiding the prodnot to be dried an for agitating the air within the chamber.

3. In a drying apparatus, the combination with a heat chamber having an entrance aperture thereto, means for feeding the product to be dried, throu h said aperture, into said chamber, reels of s eleton construction supported for rotation within said chamber and acting to support and guide the product and to agitate the air within said chamber, and conduits :arranged near the bottom ofsaid chamber and leading to the outside thereof, for removing the moist all; I

Signed at New York,N. Y., this 29th day of June, 1922.

FREDERIC P. REED. 

